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Finding the Fourth Proportional to 38,240.88, 57,347.28 and 13,274.88

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Solution

The fourth proportional to 38,240.88, 57,347.28 and 13,274.88 is: 19,907.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,240.88 : 57,347.28 = 13,274.88 : x
  2. Step 2: Convert to fraction form
    38,240.88/57,347.28 = 13,274.88/x
  3. Step 3: Cross multiply
    38,240.88x = 57,347.28 × 13,274.88
  4. Step 4: Simplify right side
    38,240.88x = 761,278,260.33
  5. Step 5: Solve for x
    x = 761,278,260.33/38,240.88
  6. Step 6: Final answer
    x = 19,907.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.